Results 91 to 100 of about 41,623 (301)

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Effect of the recovery duration of a repeated sprint exercise on the power output, jumping performance and lactate concentration in pre-pubescent soccer players

Biomedical Human Kinetics, 2016
Study aim: The aim of the present study was to examine the effect of two different recovery durations (2 min versus 5 min) on the physiological responses (power output, stretch-shortening cycle and lactate concentration) to a 5×6 s repeated cycling ...
Nikolaidis Pantelis T., Knechtle Beat
doaj   +1 more source

Gender differences in limb and joint stiffness during the fencing lunge [PDF]

, 2015
The aim of the current investigation was to examine gender differences in limb and joint stiffness characteristics during the fencing lunge. Ten male and ten female fencers completed simulated lunge movements. Lower limb kinematics were collected using
Bottoms, Lindsay, Sinclair, Jonathan Kenneth   +1 more
core   +1 more source

Ultrastable Photoactive Halide Perovskite Nanocrystal‐Sensitized SnO2 Nanorods for Room‐Temperature NO2 Detection

Advanced Functional Materials, EarlyView.
ABSTRACT Metal oxide (MOx)‐based NO2 gas sensors typically require high temperatures or ultraviolet light, limiting their practical use. To enable visible‐light activation at room temperature, efficient and stable photosensitizers should be integrated with nanostructured MOx hosts.
Yeonji Yuk, Dokyum Kim, Jun‐Cheol Park, Yoonsung Jung, Inhyeok Oh, Donghyeon Lee, Yejoon Kim, Ji‐Eun Yeo, Young Min Song, Chang‐Lyoul Lee, Sanghan Lee   +10 more
wiley   +1 more source

Jump teste to evaluate the volleyball player

Revista Brasileira de Prescrição e Fisiologia do Exercício, 2017
The objective of the review was to explain the most important jump tests for the volleyball player. The literature informed that the strength has two groups: active and reactive. The active strength is composed by explosive strength.
Nelson Kautzner Marques Junior
doaj  

The effect of a sand surface on physical performance responses of junior male handball players to plyometric training

BMC Sports Science, Medicine and Rehabilitation, 2020
Background The effects of 7 weeks plyometric training on a stable surface and on sand were compared in junior male handball players. Methods A team of experienced players was divided randomly between three groups, undertaking a standard in-season regimen
Mehrez Hammami, Nicola Luigi Bragazzi, Souhail Hermassi, Nawel Gaamouri, Ridha Aouadi, Roy J. Shephard, Mohamed Souhaiel Chelly   +6 more
doaj   +1 more source

The stretch shortening cycle and the vertical jumping ability

Revista Paulista de Educação Física, 1998
O salto vertical é uma ação básica para várias modalidades esportivas, sendo que muitas pesquisas vêm sendo realizadas na tentativa de se estabelecer um referencial teórico para sua compreensão. Seu desenvolvimento se deu em grande parte pela importância que o salto vertical tem para o estudo do Ciclo « de Alongamento e Encurtamento (CAE), o qual é um ...
Carlos Ugrinowitsch, Valdir José Barbanti   +1 more
openaire   +2 more sources

Trap‐Assisted Transport and Neuromorphic Plasticity in Lead‐Free 2D Perovskites PEA2SnI4

Advanced Functional Materials, EarlyView.
An artificial retina built from lead‐free layered perovskite (PEA)2SnI4 converts light input into a persistent photocurrent and sums successive flashes over time. Micro/nanocrystals integrated on electrodes act as synapse‐like pixels that perform temporal integration directly in hardware. This in‐sensor preprocessing merges detection and computation on
Ofelia Durante, Valeria Demontis, Karl Jonas Riisnaes, Lam Hoi Tung, Sebastiano De Stefano, Daniela Marongiu, Adolfo Mazzotti, Aditya Bhardwaj, Francesco Mattana, Elisa Pili, Selene Matta, Federico Paolucci, Michele Saba, Andrea Mura, Giovanni Bongiovanni, Monica F Craciun, Saverio Russo, Antonio Di Bartolomeo   +17 more
wiley   +1 more source

Which anthropometric and lower body power variables are predictive of professional and amateur playing status in male rugby union players? [PDF]

, 2019
The purpose of this study was to compare anthropometric and lower body power measurements between current professional and amateur male rugby union players.
Dent, Jack, Graham-Smith, Philip, Jones, Thomas W, Keane, Karen, Maguire, Phillip, Marshall, Steven J, McShane, Kevin, Payne, Tim, Smith, Andrew, Williams, Lewis   +9 more
core   +2 more sources

Mechanical behaviour of rat skeletal muscle during fatiguing stretch‐shortening cycles [PDF]

Experimental Physiology, 1997
The effects of muscle fatigue on the mechanical efficiency of muscle work performance were studied in situ, in stretch‐shortening cycles that resembled physiological conditions. The experiments were performed on the medial gastrocnemius muscles of seven rats.
openaire   +3 more sources